67% (1996)

59% (2006)

56% (2004)

63% (2003)

59% (2000)

59% (2005)

65% (2016)

62% (2012)

62% (1995)

68% (1998)

58% (2009)

59% (2010)

62% (1998)

58% (2003)

63% (2017)

64% (1998)

62% (1994)

57% (2007)

58% (1991)

56% (2005)